Engine Performance problem
1998 Ford Taurus 6 cyl Front Wheel Drive 128000 miles
My service engine light came on, giving me a Po300 code. I had new spark plugs and wires installed and still getting the code. What can I have done to figure out from the list of things that might be causing it what is actually causing it. There is a slight knock when the car idles, but it starts without issue, seems to be getting pretty decent gas milage (about 17 mpg in the city) and runs just fine when at higher speeds. Just can't figure out what is causing code and slight misfire at idle speed.
have the same problem?
Wednesday, September 9th, 2009 AT 9:19 AM